World number one Novak Djokovic stormed into the fourth round of the Miami Open after hammering Joao Sousa 6-4, 6-1 on Sunday.
Chasing his fourth title of the year, Djokovic was forced to work hard for his initial gains before showing the bridge in class as the match progressed.
Djokovic made his move at 3-3 in the opener, breaking Sousa to go 4-3 up before immediately surrendering his serve. The Serb ultimately came out on top, breaking Sousa for a second time, despite the Portuguese managing to stave off one set point.
The 26-year-old’s fight disappeared in the second set, and Djokovic secured three breaks of serve to book his spot in the fourth round, where he will face 14th seed Dominic Thiem, who beat Japanese qualifier Yoshihito Nishioka 6-2, 6-2.
Meanwhile, seventh seed Tomas Berdych battled past Steve Johnson 6-3, 6-7 (6), 6-3 to reach the fourth round, while 10th seed Richard Gasquet and 15th seed David Goffin had fewer problems on Sunday, with Gasquet breezing past Benoit Paire 6-3, 6-0, while Goffin hammered Viktor Troicki 6-1, 6-1.